package com.wanxi.stream;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.TreeMap;
import java.util.stream.Stream;

public class GetMapStream {
    public static void main(String[] args) {
        Map<String,String>  map=new TreeMap<>();
        Stream<String> stream = map.keySet().stream();


    }
}
